Www.empaq.org/tools/2007_NAICS_Guide.pdf. Manufacturers Business Directory - Find Manufacturers Businesses. Guide to Researching Companies, Industries, Countries. Where job-seekers will find all the best research tools and resources for conducting all types of critical career and job-search research -- including researching companies, industries, countries, and people. A key resource for job-seekers is information. Job-seekers will not succeed in your job-search without knowledge of the companies you are interviewing with or information on the industries and countries where these companies do business.